Demetrious Johnson and 4 other incredible walk-off KOs

#2. Valentina Shevchenko vs. Jessica Eye, UFC 238

Valentina Shevchenko is one of the greatest female fighters of all time. To some, she is even the best women's MMA fighter in the world. While the claim is certainly up for debate, the reigning UFC women's flyweight champion owns one of the most devastating knockouts in the history of the UFC women's division.

At UFC 238, 'Bullet' faced Jessica Eye and hoped to defend her flyweight crown for the very first time.

Shevchenko spent the 1st round conditioning Eye to a vicious body assault with kicks. At the onset of the 2nd round, Eye was eager to protect her midsection from another brutal array of kicks. Nevertheless, 'Bullet' slammed two thunderous kicks into her opponent's midsection.

After faking a 3rd kick and tricking Eye into dropping her arms in anticipation, Shevchenko chambered her leg higher and smashed her shin into Eye's exposed head.

The knockout was instant. Shevchenko's foe fell to the mat with her legs trembling, feet curled inwards, and eyes rolled into the back of her head as 'Bullet' walked off in victory.

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#1. Demetrious Johnson vs. Adriano Moraes, ONE on Prime Video 1

This past Saturday, former UFC flyweight champion Demetrious Johnson was on a quest for vengeance against the first man to ever knock him unconscious.

Johnson lost to the much larger Adriano Moraes a year ago after being felled by a brutal knee in the 2nd round, losing his first opportunity to capture championship gold in ONE FC. A year later, however, 'Mighty Mouse' would not be denied.

After stunning Moraes with a leaping right hook, Johnson wobbled him. Knees buckled as he stumbled away, Moraes struggled to regain his footing and as his back hit the fence, Johnson's knee crashed into his face.

The Brazilian slumped off the fence, completely unconscious as 'Mighty Mouse' walked off, having captured the ONE flyweight championship against a fighter better suited for featherweight.